Plant Y thrives in environments of great sunlight and very

Plant Y thrives in environments of great sunlight and very little moisture. Desert X is an environment with constant, powerful sunlight, and almost no moisture. Although Plant Y thrives in the areas surrounding Desert X, it does not exist naturally in the desert, nor does it survive long when introduced there.

Which of the following, if true, would be most useful in explaining the apparent discrepancy above?

(A) Desert X’s climate is far too harsh for the animals that normally feed on Plant Y.
(B) For one week in the fall, Desert X gets consistent rainfall.
(C) The environment around Desert X is ideally suited to the needs of Plant Y.
(D) Due to the lack of sufficient moisture, Desert X can support very little plant life.
(E) Plant Y cannot survive in temperatures as high as those normally found in Desert X.